body {
	font-family: Arial, sans-serif;
	line-height: 1.5;
	width: 810px;
	margin: 10px auto;
	padding: 0 1em;
}
iframe {
    width: 400px;
    float: left;
    height: 300px;
    border: 1px solid black;
    border-left: 0px;
}
.CodeMirror {
    float: left;
    width: 400px;
	height: 300px;
    border: 1px solid black;
	font-size: 12px;
}
.button {
	text-align: center;
	font-size: 10px;
	line-height: 1;
	font-weight: 700;
	padding: 4px 6px;
	position: relative;
	display: inline-block;
	text-decoration: none;
	background-color: #f5f5f5;
	background-image: -webkit-gradient(linear, left top, left bottom, from(#f5f5f5), to(#e7e7e7));
	background-image: -webkit-linear-gradient(top, #f5f5f5, #e7e7e7);
	background-image: -moz-linear-gradient(top, #f5f5f5, #e7e7e7);
	background-image: -ms-linear-gradient(top, #f5f5f5, #e7e7e7);
	background-image: -o-linear-gradient(top, #f5f5f5, #e7e7e7);
	color: #888;
	border-radius: 3px;
	box-shadow: 0px 2px 4px #aaa, inset 0px 2px 4px #fff;
	cursor: pointer;
}
.button:hover {
	color: #555;
}
.button:active {
	color: #333;
	background: #f5f5f5;
	box-shadow: 0px 1px 2px #aaa, inset 0px 1px 2px #fff;
}
.errorLine {background: #e8f2ff !important;}
.not-selectable {
    -moz-user-select: none; 
    -ms-user-select: none; 
    -khtml-user-select: none; 
    -webkit-user-select: none; 
    -o-user-select: none;
	user-select: none;
}
progress[value] {
  /* Reset the default appearance */
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: none;

  width: 150px;
  height: 8px;
  color: green;
}
progress[value]::-webkit-progress-bar {
  background-color: #eee;
  border-radius: 2px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25) inset;
}
progress[value]::-webkit-progress-value {
  background-image:
       -webkit-linear-gradient(-35deg, 
	                           transparent 33%, rgba(0, 0, 0, .1) 33%, 
	                           rgba(0,0, 0, .1) 66%, transparent 66%),
	   -webkit-linear-gradient(top, 
	                           rgba(255, 255, 255, .25), 
	                           rgba(0, 0, 0, .25)),
	   -webkit-linear-gradient(left, #3a3, #5c5);

  border-radius: 2px; 
  background-size: 20px 10px, 100% 100%, 100% 100%;
}
progress[value]::-moz-progress-bar {
  background-image:
       -moz-linear-gradient(125deg, 
	                           transparent 33%, rgba(0, 0, 0, .1) 33%, 
	                           rgba(0,0, 0, .1) 66%, transparent 66%),
	   -moz-linear-gradient(top, 
	                           rgba(255, 255, 255, .25), 
	                           rgba(0, 0, 0, .25)),
	   -moz-linear-gradient(left, #3a3, #5c5);

  border-radius: 2px; 
  background-size: 20px 10px, 100% 100%, 100% 100%;
}
#lesson-section {
	font-size: 12px;
	color: #777;
	font-weight: 700;
}
#lesson-number {
	font-size: 10px;
	line-height: 1;
	margin: 10px;
	color: #555;
}
#tutor {
	width: 100%;
	height: 200px;
}
#tutor-avatar {
	width: 200px;
	float: left;
	cursor: pointer;
}
#tutor-talk {
	width: 600px;
	float: left;
	cursor: pointer;
	font-size: 16px;
}
.tutor-code {
	font-family: monospace;
	cursor: pointer;
	font-size: 14px;
}
#code-errors {
	display: none;
	font-size: 14px;
	color: #ff3377;
}
#info-links {
	display: block;
	text-align: center;
	margin: 20px;
	font-size: 11px;
	color: #888;
	cursor: default;
}
.info-link {
	cursor: pointer;
}
.info-link:hover {
	color: #555;
}
.info-link:active {
	color: #222;
}
#simplemodal-overlay {
	background-color:#fff;
	opacity: 0.85;
}
#simplemodal-container {
	border:7px solid #aaa; 
	border-radius: 4px;
	padding:12px;
	background-color:#fff;
	opacity: 1;
	font-size: 12px;
	cursor: pointer;
}
#simplemodal-container h3 {
	font-size: 14px;
	font-weight: bold;
}
.simplemodal-closex {
	position: absolute;
	top: -6px;
	right: -6px;
 	z-index: 3200;
    cursor: pointer;
	color: #999;
    border: 4px solid #aaa;
    border-radius: 30px;
    background: #fff;
    font-size: 14px;
    font-weight: bold;
    line-height: 1em;
    padding: 0px 3px;
	cursor: pointer;
}
.simplemodal-closex:hover {
	color: #777;
}
.simplemodal-closex:active {
	color: #555;
}
#language-flags {
	margin-top: 50px;
}
.us-flag-holder {
	position: absolute;
	right: 100px;
	width: 22px;
	height: 13px;
}
.us-flag {
	display: block;
	width: 22px;
	height: 1px;
	background: #c00;
	box-shadow: 0 1px 0 white, 0 2px 0 #c00, 0 3px 0 white, 0 4px 0 #c00, 0 5px 0 white, 0 6px 0 #c00, 0 7px 0 white, 0 8px 0 #c00, 0 9px 0 white, 0 10px 0 #c00, 0 11px 0 white, 0 12px 0 #c00;
}
.us-flag:before {
	content: "";
	background: #117;
	display: block;
	width: 10px;
	height: 7px;
}
.de-flag-holder {
	position: absolute;
	right: 70px;
	width: 22px;
	height: 13px;
}
.de-flag {
	display: block;
	width: 22px;
	height: 5px;
	background: black;
	box-shadow: 0 4px 0 #c00, 0 8px 0 gold;
}
